package com.sinosoft.antiques.util;

import java.security.MessageDigest;

public class MD5 {

	public MD5() {
	}

	public static final String md5(String s) {
		char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
				'a', 'b', 'c', 'd', 'e', 'f' };
		try {
			byte strtemp[] = s.getBytes();
			MessageDigest mdtemp = MessageDigest.getInstance("MD5");
			mdtemp.update(strtemp);
			byte md[] = mdtemp.digest();
			int j = md.length;
			char str[] = new char[j * 2];
			int k = 0;
			for (int i = 0; i < j; i++) {
				byte byte0 = md[i];
				str[k++] = hexdigits[byte0 >>> 4 & 0xf];
				str[k++] = hexdigits[byte0 & 0xf];
			}

			return new String(str);
		} catch (Exception e) {
			return null;
		}
	}
}